在Excel工作簿中,执行下列代码后,sheet1工作表B7单元格的值是 。 Sub 分段() For i = 1 To 10 Sheet1.Cells(i, 1) = 8 * i Select Case Sheet1.Cells(i, 1) Case 0 To 30 Sheet1.Cells(i, 2) = Sheet1.Cells(i, 1) + 10 Case 30 To 70 Sheet1.Cells(i, 2) = Sheet1.Cells(i, 1) + 20 Case Else Sheet1.Cells(i, 2) = Sheet1.Cells(i, 1) - 10 End Select Next i End Sub